# EU vs Authenticator App

The clearest difference is in-app purchases: EU at none against Authenticator App's 3. Authenticator App's advantage is update cadence (every 4 months vs every 42 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Authenticator App sells 3 in-app purchases, starting at $2.99 per 7 days. EU asks for nothing beyond the download.

EU ships an update every 42 months, Authenticator App every 4 months. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | EU | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (137 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-and-mfa/id1621928288/reviews)** |
| Number of ratings | — | **137** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 19 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [R.L Machinery Industry Corp.](https://appshunter.io/developer/454403607) | [BEYLER Software](https://appshunter.io/developer/1551010741) |

## What reviewers say

### EU

[App page](https://appshunter.io/ios/app/eu-one/id1131130902)

**In-app purchases:** none


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-and-mfa/id1621928288)

Securely store and generate two-factor authentication tokens for your online accounts. This app enhances your digital security by providing Time-based One-time Passwords (TOTP) and Hash-based one-time passwords (HOTP). It offers encrypted backups and cross-device access for peace of mind.

**Highlights:** Two-factor authentication token generation, Time-based and Hash-based OTP support, Encrypted backup for security, Access across multiple Apple devices, Supports thousands of online accounts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |
| Premium | $4.99 | per month |
| Premium | $19.99 | per year |


## Frequently asked questions

### Is EU free?

EU is free to download, with no in-app purchases.

### Is Authenticator App free?

Authenticator App is free to download, with in-app purchases available.

### Do EU or Authenticator App have ads?

Neither EU nor Authenticator App shows ads.

### Which is updated more often, EU or Authenticator App?

EU ships an update every 42 months, and Authenticator App every 4 months. Most recently, EU was updated on October 4, 2026 and Authenticator App on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*